code: def testEmpty(self):
      # silent frames should have no dissonance
      self.assertAlmostEqual(Dissonance()([], []), 0)
  
file_path: essentia/test/src/unittests/tonal/test_dissonance.py
imports: from essentia_test import *
  from numpy import random, pi, sort
label_desc: Use image node_id 1 for calling the TestDissonance obj's underlying member method code with example usage: obj.testEmpty() without return types